Materials Chemistry provides the loop between atomic, molecular and super molecular behaviour and the useful properties of a material. It lies at the core of numerous chemical-using industries. This deals with the atomic nuclei of the materials, and how they are arranged to provide molecules, crystals, etc. Much of properties of electrical, magnetic particles and chemical materials evolve from this level of structure. The length scales involved are in angstroms. The way in which the atoms and molecules are bonded and organized is fundamental to studying the properties and behaviour of any material.